 // console.log(process.argv);

// process.stdin.resume();
// process.stdout.write("你好！");

function log(data) {
     process.stdout.write(data);
}

// log("你好！");
/* log("请输入a的值：");
 var a,b;

process.stdin.on("data",function (args) {
     if(!a){
         a=args-0;
         log("请输入b的值：");
     }else{
         b=args-0;
         log("a+b的结果："+(a+b));
     }
});*/

console.log(global)